UHLER ON INSECTS. 783 



Trypeta sp. 



Allied to T.palposa Loew. Comraou at the same place as the preced- 

 ing species. 



Trypeta sp. 



Allied toT. (cquaJis Loew. Conuuou iu the regiou around Caiion City, 

 August 11. 



Fam. CONOPID.^. 



Several forms of genera, some of them new, were collected on the plains 

 near Denver, at Colorado Springs, and at Caiion City, but their names 

 cannot now be determined. 



Fam. MUSCID^. * 



SarcopJiaga sp. 



Two species were common in the region adjacent to Colorado Springs 



and Manitou at the time when the Caloptemis spretus was swarming. 



Both of them attacked the grasshoppers and laid eggs upon them. 



Sepedon fumipennis Loew, 



Very common at Denver and Colorado Springs upon plants in damp 

 situations. 



Sepedon annipes Loew. 

 Common in the same localities as the preceding. 



Meromyza americana Fitch. 



This was a very common species upon weeds in damp places near Den- 

 ver, August 5 to 18. 



Calohata, Bexia, Miltogramma, and Antliomyia of different species were 

 found in many localities, but the species are as yet unknown to me. 



HYMENOPTERA.* 



Apis fasciata Lat. 



A few specimens occurred on the flowers of Malva and on some other 

 low plants at Caiion City, August 11. 



Bomhus ternarius Say. 

 One specimen from Beaver Brook Gulch, August 6. 



Meljssodes texana Cressou. 

 Common at Colorado Springs, August 17. 



Melissodes pennsylranica St. Farg. 

 Xot rare near Caiion City, August IL 



Melissodes mennacus Cresson. 

 A few specimens were taken at Cafiou City, August 11. 



Melissodes new sp. 



A few species occurred to me in Manitou Tark, August 11. 2s"o speci- 

 mens were found at any other point. 



* The species of this order were kindly determined for me by Mr. E. T. Cresson. 



